78.
APC vs. MemcachedAPC User Cache MemcachedLocal to the Server Shared Network ResourceGood for small objects Large or small objectsGood for mostly readworkloadsCan read and write quicklyOnly one instance Can be clusteredSaturday, May 18, 13

96.
Be Careful• JMeter looks a lot like a DOS attackSaturday, May 18, 13

97.
Be Careful• JMeter looks a lot like a DOS attack• Make sure you know what is failingSaturday, May 18, 13

98.
Be Careful• JMeter looks a lot like a DOS attack• Make sure you know what is failing• Look at monitoring while test is runningSaturday, May 18, 13

99.
Be Careful• JMeter looks a lot like a DOS attack• Make sure you know what is failing• Look at monitoring while test is running• Run in ProductionSaturday, May 18, 13

100.
Be Careful• JMeter looks a lot like a DOS attack• Make sure you know what is failing• Look at monitoring while test is running• Run in Production• Run a test, make a change, run it againSaturday, May 18, 13

106.
Why is it terrible?• Lack of context• Are we talking about average or a percentile?Saturday, May 18, 13

107.
Why is it terrible?• Lack of context• Are we talking about average or a percentile?• Server side time or client?Saturday, May 18, 13

108.
Why is it terrible?• Lack of context• Are we talking about average or a percentile?• Server side time or client?• Who is measuring it?Saturday, May 18, 13

109.
Why is it terrible?• Lack of context• Are we talking about average or a percentile?• Server side time or client?• Who is measuring it?• When is it being measured?Saturday, May 18, 13

110.
Why is it terrible?• Lack of context• Are we talking about average or a percentile?• Server side time or client?• Who is measuring it?• When is it being measured?• Real users or synthetic?Saturday, May 18, 13

117.
Things to Remember• Measure and monitor your application• Focus on big wins• Run the latest (stable) version of PHPSaturday, May 18, 13

118.
Things to Remember• Measure and monitor your application• Focus on big wins• Run the latest (stable) version of PHP• Make sure you are using APC correctlySaturday, May 18, 13

119.
Things to Remember• Measure and monitor your application• Focus on big wins• Run the latest (stable) version of PHP• Make sure you are using APC correctly• It’s always the database (stay in this room)Saturday, May 18, 13

120.
Things to Remember• Measure and monitor your application• Focus on big wins• Run the latest (stable) version of PHP• Make sure you are using APC correctly• It’s always the database (stay in this room)• Caching is your friendSaturday, May 18, 13

121.
Things to Remember• Measure and monitor your application• Focus on big wins• Run the latest (stable) version of PHP• Make sure you are using APC correctly• It’s always the database (stay in this room)• Caching is your friend• Know what system resources you depend onSaturday, May 18, 13